Patent ZA-200406382-B (ZA)
Title: Dye mixtures of fiber-reactive azo dyes, their preparation and their use.
Inventor: EICHHORN JOACHIM
IPC: D06P3/10
Filed: 2004-08-12
Abstract: Reactive dye mixtures comprise at least one dye selected from fiber reactive azo dye. Reactive dye mixtures comprise at least one dye selected from fiber reactive azo dye. [Image] [Image] [Image] D 1>-D 4>a phenyl (tri-substituted by R 1>, R 2> and X 1>), a naphthyl group of (i), a group of formula (ii) or (iii); R 1>-R 6>,R 1> 3>-R 1> 8>hydrogen, 1-4C-alkyl, 1-4C-alkoxy, hydroxyl, sulfo, carboxyl, cyano, nitro, amido, ureido or halogen; X 1>-X 3>hydrogen or a group of formula -SO 2-Z; Z : -CH=CH 2, -CH 2CH 2Z 1> or hydroxyl; Z 1>hydroxyl or an alkali-detachable group; R 7>hydrogen, optionally substituted 1-4C-alkyl, 1-4C-alkoxy-, sulfo-, halogen- or carboxyl-substituted phenyl; Z 2>a group of the formula (ia) - (ic); V : fluorine or chlorine; U 1>,U 2>fluorine, chlorine or hydrogen; Q 1>,Q 2>chlorine, fluorine, cyanamido, hydroxyl, 1-6C-alkoxy, phenoxy, sulfophenoxy, mercapto, 1-6C-alkylmercapto, pyridino, carboxypyridino, carbamoylpyridino or a group of formula -N(R 8>)-W-SO 2Z or -N(R 9>)-R 1> 0>; R 8>-R 1> 0>hydrogen or 1-6C-alkyl, sulfo-1-6C-alkyl or phenyl (optionally substituted by 1-4C-alkyl, 1-4C-alkoxy, sulfo, halogen, carboxyl, acetamido, or ureido); R 9>+R 1> 0>a cyclic ring system of the formula -(CH 2) j-, -(CH 2) 2-E-(CH 2) 2-; j : 4 or 5; E : oxygen, sulfur, sulfonyl or -NR 1> 1>; R 1> 1>1-6C-alkyl; W : 1-4C-alkylenearylene or 2-6C-alkylene (both optionally interrupted by oxygen, sulfur, sulfonyl, amino, carbonyl, carboxamido), phenylene (optionally mono- or di-substituted by 1-4C-alkyl, 1-4C-alkoxy, carboxyl, sulfo, chlorine, bromine), phenylene-CONH-phenylene (optionally substituted by 1-4C-alkyl, 1-4C-alkoxy, hydroxyl, sulfo, carboxyl, amido, ureido or halogen) or naphthylene (optionally mono- or di-substituted by sulfo groups); R 1> 2>hydrogen, 1-4C-alkyl or optionally substituted aryl radical; A : a phenylene (di-substituted by R 1> 5>R 1> 6>), a group of formula (id), a polymethylene group of formula -(CR 1> 9>R 2> 0>) k-; k : greater than 1; R 1> 9>,R 2> 0>hydrogen, 1-4C-alkyl, 1-4C-alkoxy, hydroxyl, cyano, amido, halogen or aryl; R' : hydrogen or a group of the formula (ia) or (ib), -C(=O)R 2> 1>, a group of formula (ie); R 2> 1>1-6C-alkyl, sulfo-1-6C-alkyl, carboxy-1-6C-alkyl or phenyl (optionally substituted by 1-4C-alkyl, 1-4C-alkoxy, sulfo, halogen, carboxyl, acetamido, or ureido);X=halogen or hydroxyl; d : 0 or 1; R a,R bhydrogen, 1-4C-alkyl or -CH 2-SO 3M; b,f,v : 0 or 1; T : hydroxyl or NH 2; M : hydrogen, an alkali metal or one equivalent of an alkaline earth metal. Provided that v is 0 when T is NH 2. The dyes contain at least one fiber-reactive group of the formula -SO 2-Z or -Z 2>. Independent claims are included for the following: (a) preparation of the dye mixture involving either mechanically mixing the individuals dye of formulae (I), (II), (III) and (IV) and optionally (G) either in solid form or in the form an aqueous solutions in the mandated ratio; or diazotizing an amine of formula D 2>-NH 2 and subsequently reacting the diazonium compound with an aqueous solution or suspension of a mixture having a fixed ratio of a monoazo dye of formula (III) and of at least one coupler of formula (V) and optionally a monoazo dye of formula (VI); or diazotizing an amine of formula D 1>-NH 2 and coupling onto a mixture of in each case at least one coupling compound of formula (VII) and (V) and also optionally a compound of formula (VIII) and subsequently to form a mixture of the dyes of formula (I) and (II) and optionally a compound of formula (IX); (b) an aqueous liquid product comprising the dye mixture having a total dye content of 5 - 50 wt.%. [Image] [Image] R 3> 2>H or sulfomethyl.